Today, I completed the positioning/drilling of the front post assembly to stations 2 and 3. I drilled them out to #11. Everything is now square, with the exception of the aft assembly. I need to pull it forward a small amount and then rivet the Fus 337 skins to the sill. The plans are not clear, but I assume I will need to lay out and drill holes for the 337 to sill attachment. In addition, I trimmed the overhead R-Bulk assemblies and match drilled them per the plans. I also completed riveting them together, you can see the primer in the middle of the assembly on Photo #3.